Heavy Hadrons in Dense Matter

We study the behavior of dynamically-generated baryon resonances with heavy-quark content within a unitarized coupled-channel theory in matter that fulfills heavy-quark spin symmetry constraints. We analyze the implications for the formation of charmed mesic nuclei and the propagation of heavy mesons in heavy-ion collisions from RHIC to FAIR.Comment: 4 pages, 1 table, 2 figures, contribution to the proceedings of Strangeness in Quark Matter (SQM2015), Dubna, 6-11 July 201

Preemptive effects of epidural s (+) - ketamine or ketamine in the horse's postincisional pain

O objetivo deste estudo foi avaliar o efeito analgésico da administração prévia de cetamina S(+) ou cetamina, na dor pós-inciosal em eqüinos. Utilizaram-se, em um estudo duplo-cego ao acaso, 16 éguas com idade de 6±2 anos, pesando 273,2 ± 42,0 kg. 24 horas antes do início do experimento introduziu-se um cateter epidural. No dia seguinte, as regiões isquiáticas direita e esquerda foram tricotomizadas e, a sensibilidade cutânea aferida utilizando-se os filamentos de Von Frey, tempo -30 (T-30). Realizou-se bloqueio anestésico em linha, no lado direito e, 25 minutos após administrou-se através do cateter epidural cetamina S(+) no G1 e cetamina no G2. Cinco minutos após a injeção de cetamina, realizou-se uma incisão de pele de 10 cm no lado direito, seguida de sutura. Avaliou-se a dor pós-incisional, utilizando-se os filamentos de Von Frey, a 1, 3 e 5 cm ao redor da incisão (lado incindido) e a sensibilidade cutânea (lado controle), em intervalos de 15 minutos, por 2 horas e então, 4, 6 e 8 horas após a sutura de pele. Não foram observadas alterações nas freqüências cardíaca ou respiratória e temperatura retal entre os grupos ou entre os tempos de cada grupo. Observou-se ataxia de membros pélvicos em 62,5% e 12,5% dos animais, para o G1 e G2, respectivamente. A cetamina S(+) e cetamina reduziram a sensibilidade cutânea no lado direito e esquerdo, para os estímulos mecânicos produzidos pelos filamentos de Von Frey, durante todo os período experimental. A cetamina S(+) e cetamina produziram duração de efeito analgésico similares e não interferiram nos parâmetros cardiorrespiratórios. Observou-se ataxia mais intensa e potência anestésica superior nos primeiros 60 minutos após a administração de cetamina S(+).The aim of this study was to evaluate the pre-emptive effect of epidural ketamine S (+) (SK) or racemic ketamine (RK) administration, in post-incisional pain in horses. Were used in a blinded, randomized experimental study, sixteen mixed breed mares, 6±2 years old, weighting 273.2±42.0 kg. An epidural catheter was inserted 24 hours before the trials. The thigh region was shaved bilaterally, and mechanical cutaneous sensibility was measured using von Frey filaments (T-30). Using the left side as the control one, local anesthesia was performed at the right side. Twenty-five minutes later, SK was injected in G1 or RK in G2 through the epidural catheter. Five minutes after the ketamine injection, a 10 cm skin incision was made on the right side, and then sutured. Mechanical post-incisional pain was measured using von Frey filaments, at 1, 3 and 5 cm around the incision at 15 minutes intervals, for 2 hours, then 4, 6 and 8 hours after suturing. No changes were observed in the heart and respiratory rate and rectal temperature among groups or times of each group. Hind limb ataxia was observed in 62.5% and 12.5% of G1 and G2 respectively. SK and RK reduced cutaneous sensibility in the right and the left sides to mechanical postincisional pain during all time of experiment. Epidural SK and RK produce similar post-incisional analgesic effects, did not interfere in the cardio-respiratory parameters. The SK induces more intense ataxia in mares and presents a larger analgesic potency in the first 60 minutes after the administration

Crecimiento y absorción de nitrógeno, fósforo y potasio en cebolla, Allium cepa L.: variedad ocañera.

El objetivo del estudio fue determinar las variaciones en crecimiento y acumulación de materia seca, N, P, K en hojas y bulbos en la cebolla ocañera. Se realizó el estudio durante 80 días utilizando la cebolla de ciclo corto, propagación asexual y altos rendimientos. Las épocas de crecimiento (6) contadas a partir de 30 días después de la siembra y con intervalos de 10 días, fueron los tratamientos (6 y 4 repeticiones, al azar). Los parámetros determinados fueron: número de falsos tallos por planta, número de hojas por falso tallo, número de hojas por planta altura de hojas, peso fresco y seco de hojas y bulbos, porcentajes y gramos de NPK en hojas y bulbos. Los pesos fresco y seco de hojas y bulbos guardaron estrecha relación a través del período vegetativo. Las necesidades de N y K son mayores en las primeras épocas, las de P en todasCebolla de bulbo-Cebolla japonesa

First Records for Spawning of Caribbean Acropora Species in Colombian MPAs

Estimates of Colombian Caribbean coral percent cover in the Southern Caribbean are consistent with those throughout the Caribbean Sea, which has declined to about 10% of historical levels in the last few decades. Human activities like destructive fishing techniques in the marine parks have degraded the reefs over the last few decades. Colombia’s Marine Protected Areas (MPAs) have thousands of square kilometers to map and patrol and few resources to devote to scientific and restoration efforts. Efforts to implement sexual reproduction techniques for restoration are starting to successfully propagate and settle corals on ceramic plates for reef deployment in the area but require more natural history information for large-scale implementation in restoration. Past observations of captive endangered coral Acropora cervicornis in the nursery of the Oceanario Islas del Rosario indicate spawning 6 days after the August full moon for the previous 3 years. Coral spawn collection from the wild reef was completed each night from 2 to 7 days after the full moon in August 2019, and resulted in the first observation of A. cervicornis spawning on natural reefs in Parque Nacional Natural Los Corales del Rosario y de San Bernardo, a 1,200 km2 underwater national park and MPA established in 1977. Additionally, coral spawn collection from the nursery reefs in August 2019 provide the first reported observations of spawning for endangered coral Acropora palmata in Colombia

DNA sequences within glioma-derived extracellular vesicles can cross the intact blood-brain barrier and be detected in peripheral blood of patients

Tumor-cell-secreted extracellular vesicles (EVs) can cross the disrupted bloodbrain barrier (BBB) into the bloodstream. However, in certain gliomas, the BBB remains intact, which might limit EVs release. To evaluate the ability of tumor-derived EVs to cross the BBB, we used an orthotopic xenotransplant mouse model of human glioma-cancer stem cells featuring an intact BBB. We demonstrated that all types of tumor cells-derived EVs−apoptotic bodies, shedding microvesicles and exosomes− cross the intact BBB and can be detected in the peripheral blood, which provides a minimally invasive method for their detection compared to liquid biopsies obtained from cerebrospinal fluid (CSF). Furthermore, these EVs can be readily distinguished from total murine EVs, since they carry human-specific DNA sequences relevant for GBM biology. In a small cohort of glioma patients, we finally demonstrated that peripheral blood EVs cargo can be successfully used to detect the presence of IDH1G395A, an essential biomarker in the current management of human gliomaWe are grateful for the financial support from the ‘Fondo de Investigaciones Sanitarias’ (FIS) (PI10/01069 and PI14/00077) and the ‘Miguel Servet Program’ (CP11/00147) from the ‘Instituto de Salud Carlos III’ (AAS), RTC-2015-3846-1 from Ministerio de Economía y Competitividad and FEDER fund

Anthracological evidence suggests naturalness of Pinus pinaster in inland southwestern Iberia

The study of well-preserved archaeological charcoals in the pre-Roman Iron Age settlement of Castillejos II (Badajoz, Spain) is used to reconstruct environmental conditions and land-use practices in vegetation landscapes in the southwest of the Iberian Peninsula before the arrival of Roman civilization. The results support that, while evergreen Quercus forests dominated during the Holocene, Pinus pinaster existed as a natural element of southwestern Iberian Peninsula vegetation. Although its presence could be linked to anthropogenic disturbance or fire history, it is suggested that P. pinaster populations survived during the Holocene in the region, mixed with oaks or in monospecific stands in mountain enclaves. This hypothesis contrasts with previous assumptions that P. pinaster was not autochthonous in the area